Final answer:Switches in schematics are depicted in their normal position, which refers to their state when not actuated by external force. This convention is critical for accurately interpreting and constructing circuits based on diagrams. The correct option is A .Explanation:The question pertains to how switches are illustrated in schematics, specifically asking about their default or "normal" position in such diagrams. In electrical engineering and circuit design, it is standard practice to depict switches in their normal position. The normal position of a switch refers to the state it is in when not being actuated or influenced by an external force. Therefore, the correct answer is A. Shown in their normal position. This convention allows for a clearer understanding of how a circuit is supposed to function under typical conditions.For example, a Single Pole Double Throw (SPDT) switch, which can route power to different outputs based on its position, is shown in the position it would naturally be in if no one is interacting with it. This is crucial for accurately interpreting and building circuits based on schematic diagrams. When a switch is shown in a circuit, it can be in an open or closed state depending on whether it is a normally open (NO) or normally closed (NC) switch, indicating its default state without external influence.Understanding the normal position of switches in schematics is fundamental for anyone studying or working in fields related to electronics, electrical engineering, or any technical field that involves reading or creating circuit diagrams. It helps in predicting the behavior of electrical circuits under various conditions and is a fundamental concept in diagnostics and circuit design....

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